.dta-ad-order-form-wrapper {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.dta-ad-order-form .form-section {
    background: #f9f9f9;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 4px;
}

.dta-ad-order-form .form-section h3 {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.2em;
    border-bottom: 2px solid #ddd;
    padding-bottom: 10px;
}

.dta-ad-order-form .required {
    color: #dc3545;
}

.dta-ad-order-form .form-group {
    margin-bottom: 1rem;
}

.dta-ad-order-form label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: block;
}

.dta-ad-order-form .form-control,
.dta-ad-order-form .form-control-file {
    width: 100%;
}

.dta-ad-order-form .form-check {
    margin-bottom: 0.5rem;
}

.dta-ad-order-form .form-actions {
    text-align: center;
    padding: 20px 0;
}

.dta-ad-order-form .btn-primary {
    padding: 12px 40px;
    font-size: 1.1em;
}

#image_preview img {
    max-width: 300px;
    max-height: 300px;
    border: 1px solid #ddd;
    padding: 5px;
    border-radius: 4px;
}

@media (max-width: 768px) {
    .dta-ad-order-form-wrapper {
        padding: 10px;
    }
    
    .dta-ad-order-form .form-section {
        padding: 15px;
    }
}